package com.itheima.interger;

public class Demo01 {

    public static void main(String[] args) {
        //Integer i1=new Integer(10);
        Integer i1 = 10;

        Integer i2 = Integer.valueOf("20");
        //Integer i3 = Integer.valueOf(10);
        Integer i3 = 10;
        Integer i4 = Integer.valueOf("20");
        int i = Integer.parseInt("30");
        Integer i5=i;
    }
}
